old photo

I have an old photo of what I believe to be employees of the Santa Fe Railroad. They are dressed like firemen and some of them have axes. I think that one of the employees is my grandfather. Would anybody know if the railroad had any firemen employees that worked for the railroad? If anyone can help me I'll be glad to email him/her the photo if that would help. We're also trying to find out the approximate year of this photo.
Thanks, Linda